Please Help - tape capacity

hi,

the amount data that is writing on the tape is dapends on the compression ratio and this compression ratio always depends on the type of data

generally this compression handles by the tape drive, which is netbackup not aware..

I belive that number that you have provded in KB 2114541984( around 2 TB) and 3110560576(around 3 TB)

though you know that the tape capacity is 1.6 TB, due to the compresssion it able to take more than that..

see below how compression works in different types of data

http://www.symantec.com/business/support/index?page=content&id=HOWTO56173

Note the following levels of compressibility, in descending order:

• Plain text

  Usually the most compressible type of data.

• Executable code

  May compress somewhat, but not as much as plain text.

• Already compressed data

  Often, no further compression is possible.

• Encrypted data

  May expand in size if compression is applied.